Commitments and Contingencies (Details Textual) In Millions, unless otherwise specified	3 Months Ended					3 Months Ended
	Mar. 31, 2013 USD ($) facility Bed	Mar. 31, 2013 AUD	Jun. 22, 2012 USD ($)	Aug. 29, 2011 USD ($)	Aug. 22, 2011 USD ($)	Mar. 31, 2013 Minimum USD ($)	Mar. 31, 2013 Maximum USD ($)
Commitments and Contingencies (Textual) [Abstract]
Verdict against the company in wrongful death action			$ 6.5
Court entered judgment against Company					8.4
Amount of bond litigation				10.0
Amount of liability responsible for wrongful death action	3.0
Claims against the company related to property damages including interest	18.8	18.0
Pre-judgemet interest rate	7.00%	7.00%
Estimated construction capital project cost						20.0	25.0
Cost already spent on existing capital projects	8.0
Remaining capital required for capital projects						12.0	17.0
Capital expenditure related to facility maintenance cost minimum range	30.0
Capital expenditure related to facility maintenance cost maximum range	35.0
Number of vacant beds at idle facilities marketed to potential customers	6,000	6,000
Number of marketed idle facilities	7	7
Carrying values of idle facilities marketed to potential customers	$ 238.7